Some species of animals, including some salamanders and crickets, spend their entire lives deep in caves where no sunlight reaches. Predict the main source of energy for these organisms.

Both 1,2−dihydronaphthalene and 1,4−dihydronaphthalene may be selectively hydrogenated to 1,2,3,4−tetrahydronaphthalene. one of these isomers has a heat of hydrogenation of 101 kj/mol (24.1 kcal/mol), and the heat of hydrogenation of the other is 113 kj/mol (27.1 kcal/mol). match the heat of hydrogenation with the appropriate dihydronaphthalene.

Smog is the term used to describe the combination of fog and smoke

When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)